Oil-feeding device



Filed Dec. 1.925

mil? dye EflButJtaw tan Patented June 24, 1930 UNITED stars CLARENCE H. RUDGE AND EDVJARD ANDERSGE BUCHANAN, F NAMPA, IDAHO OIL-FEEDING DEVICE Application filed December 1, 1925.

This invention relates to oil feeding devices and has relation more particularly to a device of this kind especially designed and adapted for use in connection with hand operated threading devices, pipe cutting devices and kindred implements, and it is an object of the invention to provide a feeding device of this kind provided with means whereby oil is fed by gravity to the cutting dies and in a manner to eliminate the loss of time incident to oiling the dies by hand, misplaced oil can and injury to dies from improper oiling.

Another object of the invention is to pro- 5 vide a device of this lrind which is adapted to turn with the stock for the dies and which intermittently effects a discharge of oil upon the dies.

The invention consists in the details of construction and in the combination and arrangement of the several parts of our im* proved oil feeding device whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of our invention will hereinafter be definitely claimed.

In order that our invention may be the better understood, we will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in elevation illustrating an oiling device constructed in accordance with an embodiment of our invention in applied position, the coacting die stock and operating handle being diagrammatically indicated by broken lines;

Figure 2 is a horizontal sectional view taken through the structure as illustrated in Figure 1, the line of section extending lengthwise through the internal oil tube for clarity in disclosure, a fragment of the holding member being included;

Figure 3 is a view in elevation at one side of the device, a portion being broken away;

Figure 4 is an elevational view opposite side of the device;

of the Serial No. 22,518.

Figure 5 is a fragmentary view in end elevation illustrating the holding member substantially in the form of a sector so that it may be readily positioned upon a die stock between a pair of adjacent dies.

As herein disclosed, our improved device is 9 especially adapted for use in connection with a hand operated stock and a sidewall 1 of the container C has secured thereto a clamping member 2 whereby the device may be readily attached to and carried by the operating handle 3 indicated by broken lines in Figure l and which handle is of a type generally used in connection with a stock of this kind. V i

The top of the container has a portion thereof raised, as at 4:,to provide an air chamber 5' when the container is placed in a posit-ion to be filled andsaid top "to one side of said raised portion at is provided with a normally closed filling opening 6. It will be understood that when the container is to be filled with oil, the same is arranged in the position as particularly illustrated in Figures 3 and 4 and by having the filling vent in the lowerportion of the top it is assured that the container will not be completely filled.

Arranged within the container C is an oil tube 7 leadingfrom the lower part of the apex poron of the container and extend ing thereirom on a predetermined incline within the air chamber 5, tlie'portion of the tube 7 within the air chamber 5 then being laterally disposed, as at and terminating in relatively close proximity to the second side wall 8 at a point closely adjacent to the rear or back curved wall 9. This inner end portion of the tube 7 is outwardly flared, as at 10. Coacting with the inner or receiving end of the tube 7 or more partioularly the portion 7 thereof is a regulating valve 11 of a needle type threaded through the wall 8 and more especially a reiplforcing part 12 suitably ailixed to said wa CQll- I ice Also in communication with the portion 7 of the tube 7 is an air vent 14 provided with longitudinally spaced internal valve seats 15. Interposed between these seats 15 is a ball value 16 whereby, during a work ing operation, the tube 7 is intermittently placed in communication with the outside air to furnish air to the chamber 5 and to break siphonage in the tube. The wall of the vent 14 intermediate the valve seats 15 is provided with a port 15 affording communication within the container C. During a workingoperation and when the vent 14- is upwardly disposed, the valve 16 coacts with the lowermost seat 15 permitting air to enter the container through the outer end of the vent 1 1 and the port 15. As the vent 14 assumes a position below the horizontal, the valve 16 will engage the outer seat 15 and the tube 7 will then be opened within the container C through the port 15 resulting in the breakage of a siphon within the tube 7 It is to be understood that in operation the applied container C travels in a vertically disposed circular path. The inner or receiving end of the tube" 7 has associated therewith a dash 17 leading from the main or oil chamber 18 of the container C. The dash is so placed that oil is not carried to the receiving end of the tube 7 when the stock is being reversed. However, during a working operation of the stock or when the dies are acting, oil will pass through the tube from, the inner end thereof and be discharged at the apex portion of the container upon the dies. As the handle 3 is changed with respect to the stock during a turning operation thereof, the container C will be properly positioned with respect to the dies as the container is secured to and carried by said handle as liereinbefore stated.

The device as herein disclosed is intended for right hand dies or cutters but by reversing the position of the tube and dash it can be made to operate in the same manner on left hand dies or cutters or a combination attachmentcan be made by installing bothright and left hand tubes and dashes. As these arrangements are believed to be obvious it is not thought necessary that a detailed description and illustration thereof be given.

From the foregoing description it is thought to be obvious that an oil feeding device constructed in accordance with our invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that our invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason we do not wish to be understood as limiting ourselves to the precise arrangement and formation of the several parts herein shown in carrying out our invention in practice except as hereinafter claimed.

We claim:

A lubricant applicator for a die stock comprising a container adapted to be applied to the head of the stool; at one side of the axis thereof, a tube housed within the container, one end of which constituting an inlet, the opposite end of the tube discharging from the container at the inner portion of the container, the portion of the tube adjacent to the inlet end of the tube being laterally disposed on an outward curvature with respect to the discharge end of the tube, a vent tube in communication with the curved portion of the first named tube and extending exteriorly of the container, said vent tube being provided with longitudinally spaced internal valve seats, a valve member freely mounted within the vent tube between the valve seats for coaction therewith, the wall of the vent tube having a port affording communication between the container and the vent tube between the valve seats.

In testimony whereof we hereunto affix our signatures.

CLARENCE H. RUDGE. EDVARD ANDERSON BUCHANAN. 

